The Lii 6707 Å photospheric line is the deepest absorption line in our spectra and benefits from a high S/N, making it a more enticing photospheric line with which to study the veiling. However, this use of the Lii 6707 Å line potentially suffers from the uncertain Li abundance (\(A\) (Li) = log \(N\) (Li)) of pre-main sequence stars, due to the onset of Li nuclear burning. The Li abundance decreases as a star gets older, in a way that depends on its stellar properties, that is, mass and temperature [1]}.
